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Omar wants to determine if the mass of a model rocket affects how long the rocket is able to stay up in the air. To do this, he constructs three identical rockets and then fills two of the rockets with varying amounts of sand to add mass. He then launches the rockets one at a time and times how long they are able to stay airborne.

What is the test variable (independent variable) in Omar's experiment?
A.
the materials out of which the rockets were made
B.
the time the rockets remain airborne
C.
the force with which each rocket is launched
D.
the masses of the model rockets

Answer :

mickymike92

The test variable (independent variable) in Omar's experiment is the masses of the model rockets; option D.

What are the variables in an experiment?

Variables in an experiment refer to those measurements or factors that are under the control of the researcher and which can be altered by the researcher in order to study the effect of changes on the study.

The three types of variables in a study are:

  • Independent variables
  • Dependent variables
  • Control variables or Constant variables

In the study conducted by Omar, the test variable (independent variable) is the time of rocket stays up in the air.

Learn more about variables at: https://brainly.com/question/25223322

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